Earlier this year, a former colleague of mine moved to Paris. If you want to learn more about the stuff expats are confronted with (for example because you are dreaming of moving to Paris too), it might be good idea to read her blog, at least for a while (in Dutch).
The biggest problem seems to be the quality and the price of accommodation. It is, indeed, amazing how big the amounts are you have to pay for a place in the city of lights. This is one of the billboards we noticed while we were taking a short city trip to Paris last November (finally managed to update my Flickr account too, by the way):
Not exactly motivating is it? There are some real estate cowboys running the place, if you ask me. In that case, I think I prefer the real cowboys from Paris, Texas... Does it surprise you this reminds me of one of the better films AND soundtracks of the past few decades?